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javasparqljenaowlprotege

Return System.out to String

I have query Sparql on OWL 'ressu.owl' file which created with protege 3.x.. am obliged to point to transform the resultset into something usable like JTextArea for this i work with ResultSetFormatter()

i use it like this 

ResultSetFormatter.out(System.out, results, query) ;

and it give me this result in console of Netbeans:

enter image description here

but when i try to return System.out to String :: 

com.hp.hpl.jena.query.ResultSet results = qe.execSelect();
ResultSetFormatter.out(System.out, results, query) ;
ByteArrayOutputStream go = new ByteArrayOutputStream ();
ResultSetFormatter.out((OutputStream)go ,results, query);
String result = go.toString();
jTextArea1.setText(result);

it show me in the JtextArea only 

---------------------------------------------------------------
| hasnamefonctioncontrainte        | hasnamefonctionprincipale 
===============================================================

help Thanks a lot

Solution

  • result is an iterator.

    You printed it out at 

    ResultSetFormatter.out(System.out, results, query) ;

    so now you are at the end of the iterator and the second call:

    ResultSetFormatter.out((OutputStream)go ,results, query);

    iterates from that point (the end) hence no rows.

    Try ResultSetFactory.copyResults to get a result set you can rewind (or just don't print it out).